Find Antonyms
firstly Antonyms
Opposite of firstly
Pinning down the opposite of firstly requires matching its exact sense, so the antonyms and opposite words below are paired with a clear adverb definition and ranked by contrast strength.
• adverb (Context 1)
In the first place; used to introduce the first point, reason, or item in an enumerated series.
Usage Example
"There are two main reasons for the delay: lastly, the weather was terrible, and secondly, the equipment arrived late."
Strongest
lastly
finally
Strong
ultimately
Similar words to firstly
Words similar to firstly shift depending on context. Common synonyms include:
first
first of all
to begin with
in the first place
for a start
initially
primarily
Cite this Entry
Wordmom. (2026). Antonyms for Firstly. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/firstly